Tyndall, John Irish physicist who 1869 studied the scattering of light by invisibly small suspended particles in colloids. Known as the Tyndall effect, it was first observed with http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/T/Tyndall/1.html
Extractions: Irish physicist who 1869 studied the scattering of light by invisibly small suspended particles in colloids. Known as the Tyndall effect, it was first observed with colloidal solutions, in which a beam of light is made visible when it is scattered by minute colloidal particles (whereas a pure solvent does not scatter light). Similar scattering of blue wavelengths of sunlight by particles in the atmosphere makes the sky look blue (beyond the atmosphere, the sky is black). Tyndall was born in County Carlow and studied at Marburg, Germany. He became professor at the Royal Institution 1853 and was also professor at the Royal School of Mines 1859-68. As superintendent of the Royal Institution from 1867, he did much to popularize science in Britain and also in the USA, where he toured from 1872 to 1873. Having established that there are dust particles suspended in the air, Tyndall was able to show that the air contains living microorganisms. This confirmed the work of French chemist Louis Pasteur that rejected the spontaneous generation of life, and it also inspired Tyndall to develop methods of sterilizing by heat treatment.
John Tyndall Definition Of John Tyndall In The Free Online Encyclopedia. Tyndall, John . Born Aug. 2, 1820, in Leighlin Bridge, Ireland; died Dec. 4, 1893, in Hind Head, Surrey. British physicist. Fellow of the Royal Society of London (1852). http://encyclopedia2.thefreedictionary.com/John Tyndall
Tyndall, John John Tyndall FRS (18201893) John Tyndall was the first to explain why the sky is blue. He was also one of the first people to adopt the term physicist rather than the term http://ams2-aai-web-1.anu.net/reading-room/life-society/science-technology/irish
Extractions: Wiki Commons John Tyndall was the first to explain why the sky is blue. He was also one of the first people to adopt the term physicist rather than the term natural philosopher. Wiki Commons Enlarge image John Tyndall was born in Leighlinbridge, County Carlow in 1820. He obtained his Ph.D. at Marburg University in Germany where he studied chemistry under Robert Bunsen. In 1853 he was offered the chair in Natural Philosophy at the Royal Institution in London and succeeded Michael Faraday as its Director in 1867. Tyndall was the first to explain why the sky is blue. It is due to the different wavelengths of light being scattered by different degrees by the atmosphere. Tyndall was one of the first people to adopt the term physicist rather than the term natural philosopher. Many scientific phenomena are called after him including the Tyndall effect, Tyndallisation and Tyndall scattering. He was one of the founders of the journal Nature in 1869.
